[GHC] Batch modify: #10837, #10580, #9912, #9782, #9855, #9710, ...

Batch modification to #10837, #10580, #9912, #9782, #9855, #9710, #10849, #10486, #8596, #10775, #10762, #10805 by thomie: milestone to 8.0.1 -- Tickets URL: http://ghc.haskell.org/trac/ghc/query?id=10837%2C10580%2C9912%2C9782%2C9855%... GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler